The energy, nitrogen and vitamin nutrition of 36 strains of Rhizobium japonicum were investigated. Most of the strains utilized gluconate, glycerol, arabinose, glucose, mannose, mannitol, sorbitol, galactose and maltose. ...

Polyphenol oxidase activity, peroxidase activity and virus titer were determined at 2-day intervals for 22 days in tobacco leaf tissue singly infected by three strains of tobacco mosaic virus (TMV). The aucuba and yellow ...

Losses due to weeds in food crop production are discussed. Types of weeds differ from one crop to another; environmental conditions, crop management and other factors affect weed growth. Hand weeding is practised on small ...

Following a 600 m transect from the southeastern shore toward the hills three main soil types were encountered, i.e., the sandy regosols, the tuffaceous over sandy regosols, and the latosolized tuffaceous regosols over ...

Wash erosion increased as initial clod size increased from 0.5–2 mm to 8–30 mm on a Marshall silty clay loam except in the case of clods from continuous bromegrass (Bromus inermis). Wash losses increased as size increased ...

In the last few years three have been several studies of the andosols. Since this group of balck-colored soils is widely distributed inthe volcanic areas around the gradually receiving more attention. The unusual behavior ...